<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8"> 
	<title>菜鸟教程(runoob.com)</title> 
	<link rel="stylesheet" type="text/css" href="styles.css">
</head>

<body>
	<h1 style="text-align: center;">我使用了外部样式文件来格式化文本 </h1>
	<p> 我也是!</p>
	<img src="https://ss0.bdstatic.com/70cFvHSh_Q1YnxGkpoWK1HF6hhy/it/u=1318166801,2123340571&fm=27&gp=0.jpg/" alt="middle" style="float:left" width="400" height="300">
</body>

</html>